{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2022:E26GAZFTYAS33IJRFKAXOZA44K","short_pith_number":"pith:E26GAZFT","canonical_record":{"source":{"id":"2205.03232","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T13:54:57Z","cross_cats_sorted":[],"title_canon_sha256":"b0b0a21fa23983ed98e4c7140ca9643cf70c3565e98d0b863bccefec740a7f6a","abstract_canon_sha256":"2595c404d89fb6c535f8243703a8ecf36465d14fa32c7a3849829f9dc5191768"},"schema_version":"1.0"},"canonical_sha256":"26bc6064b3c025bda1312a8177641ce2bc99622691390ab3062d6d7c306d96d6","source":{"kind":"arxiv","id":"2205.03232","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03232","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03232v1","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03232","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_12","alias_value":"E26GAZFTYAS3","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_16","alias_value":"E26GAZFTYAS33IJR","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_8","alias_value":"E26GAZFT","created_at":"2026-07-05T04:33:36Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2022:E26GAZFTYAS33IJRFKAXOZA44K","target":"record","payload":{"canonical_record":{"source":{"id":"2205.03232","kind":"arxiv","version":1},"metadata":{"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T13:54:57Z","cross_cats_sorted":[],"title_canon_sha256":"b0b0a21fa23983ed98e4c7140ca9643cf70c3565e98d0b863bccefec740a7f6a","abstract_canon_sha256":"2595c404d89fb6c535f8243703a8ecf36465d14fa32c7a3849829f9dc5191768"},"schema_version":"1.0"},"canonical_sha256":"26bc6064b3c025bda1312a8177641ce2bc99622691390ab3062d6d7c306d96d6","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T04:33:36.371118Z","signature_b64":"7GXHtUGPbtX52CG2XfRVlZSMBSd8CrQ1pwqu9zDCX1oPG/pV0mVjxmjckzpL65J1ZY+TrjCP/fHViwg3z87SBQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"26bc6064b3c025bda1312a8177641ce2bc99622691390ab3062d6d7c306d96d6","last_reissued_at":"2026-07-05T04:33:36.370622Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T04:33:36.370622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2205.03232","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:33:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"N8htbqhcTMvkRPkFNc6ejXWN0d+UsBXB9E/hpIcw2Sf61RuBiMVC/xkcv9vQr/+Y8yRmnoF+SL1djagzzjlLAw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:19:58.991504Z"},"content_sha256":"e1643641815e6ad92dfe5d935b755f011b88445ca73192a24c785138fb7f7a4a","schema_version":"1.0","event_id":"sha256:e1643641815e6ad92dfe5d935b755f011b88445ca73192a24c785138fb7f7a4a"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2022:E26GAZFTYAS33IJRFKAXOZA44K","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"The 2021 outburst of the recurrent nova RS Ophiuchi observed in X-rays by the Neil Gehrels Swift Observatory: a comparative study","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"astro-ph.HE","authors_text":"10), (10) INAF-Padova, (11) Universita di Pisa, 12), (12) INFN-Sezione Pisa, (13) Arizona State University, (14) University of Minnesota), (2) INAF National Institute of Astrophysics, (3) ESA-ESAC, (4) Astrophysics Research Institute, 5), (5) Botswana International University of Science, (6) Harvard-Smithsonian Center for Astrophysics, (7) Mullard Space Science Laboratory, (8) Jodrell Bank Centre for Astrophysics, (9) University of Wisconsin-Madison, A.P. Beardmore (1), C.E. Woodward (14) ((1) University of Leicester, J.J. Drake (6), J.P. Osborne (1), J.-U. Ness (3), K.L. Page (1), Liverpool John Moores University, M.F. Bode (4, M.J. Darnley (4), M. Orio (9, N.P.M. Kuin (7), P.A. Evans (1), S.N. Shore (11, S. Starrfield (3), Technology, T.J. O'Brien (8), U. Munari (2), University College London, University of Manchester","submitted_at":"2022-05-06T13:54:57Z","abstract_excerpt":"On 2021 August 8, the recurrent nova RS Ophiuchi erupted again, after an interval of 15.5 yr. Regular monitoring by the Neil Gehrels Swift Observatory began promptly, on August 9.9 (0.37 day after the optical peak), and continued until the source passed behind the Sun at the start of November, 86 days later. Observations then restarted on day 197, once RS Oph emerged from the Sun constraint. This makes RS Oph the first Galactic recurrent nova to have been monitored by Swift throughout two eruptions. Here we investigate the extensive X-ray datasets from 2006 and 2021, as well as the more limite"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03232","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2205.03232/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T04:33:36Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"+39oZ+JteaJvLOaMPJDmK2HmG9zZrpBrenmcdGN//J/i2f6ycYdpMz0LhYR3kiiWlxXMIyrSTr9pgxwEACoyBw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-07T08:19:58.991976Z"},"content_sha256":"e9590d51384b1cbca8d35eb63ce42ee4a8fafc4d0dbe3a052d5abfe611a8c8da","schema_version":"1.0","event_id":"sha256:e9590d51384b1cbca8d35eb63ce42ee4a8fafc4d0dbe3a052d5abfe611a8c8da"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/E26GAZFTYAS33IJRFKAXOZA44K/bundle.json","state_url":"https://pith.science/pith/E26GAZFTYAS33IJRFKAXOZA44K/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/E26GAZFTYAS33IJRFKAXOZA44K/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-07T08:19:58Z","links":{"resolver":"https://pith.science/pith/E26GAZFTYAS33IJRFKAXOZA44K","bundle":"https://pith.science/pith/E26GAZFTYAS33IJRFKAXOZA44K/bundle.json","state":"https://pith.science/pith/E26GAZFTYAS33IJRFKAXOZA44K/state.json","well_known_bundle":"https://pith.science/.well-known/pith/E26GAZFTYAS33IJRFKAXOZA44K/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2022:E26GAZFTYAS33IJRFKAXOZA44K","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"2595c404d89fb6c535f8243703a8ecf36465d14fa32c7a3849829f9dc5191768","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T13:54:57Z","title_canon_sha256":"b0b0a21fa23983ed98e4c7140ca9643cf70c3565e98d0b863bccefec740a7f6a"},"schema_version":"1.0","source":{"id":"2205.03232","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2205.03232","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"arxiv_version","alias_value":"2205.03232v1","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2205.03232","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_12","alias_value":"E26GAZFTYAS3","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_16","alias_value":"E26GAZFTYAS33IJR","created_at":"2026-07-05T04:33:36Z"},{"alias_kind":"pith_short_8","alias_value":"E26GAZFT","created_at":"2026-07-05T04:33:36Z"}],"graph_snapshots":[{"event_id":"sha256:e9590d51384b1cbca8d35eb63ce42ee4a8fafc4d0dbe3a052d5abfe611a8c8da","target":"graph","created_at":"2026-07-05T04:33:36Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2205.03232/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"On 2021 August 8, the recurrent nova RS Ophiuchi erupted again, after an interval of 15.5 yr. Regular monitoring by the Neil Gehrels Swift Observatory began promptly, on August 9.9 (0.37 day after the optical peak), and continued until the source passed behind the Sun at the start of November, 86 days later. Observations then restarted on day 197, once RS Oph emerged from the Sun constraint. This makes RS Oph the first Galactic recurrent nova to have been monitored by Swift throughout two eruptions. Here we investigate the extensive X-ray datasets from 2006 and 2021, as well as the more limite","authors_text":"10), (10) INAF-Padova, (11) Universita di Pisa, 12), (12) INFN-Sezione Pisa, (13) Arizona State University, (14) University of Minnesota), (2) INAF National Institute of Astrophysics, (3) ESA-ESAC, (4) Astrophysics Research Institute, 5), (5) Botswana International University of Science, (6) Harvard-Smithsonian Center for Astrophysics, (7) Mullard Space Science Laboratory, (8) Jodrell Bank Centre for Astrophysics, (9) University of Wisconsin-Madison, A.P. Beardmore (1), C.E. Woodward (14) ((1) University of Leicester, J.J. Drake (6), J.P. Osborne (1), J.-U. Ness (3), K.L. Page (1), Liverpool John Moores University, M.F. Bode (4, M.J. Darnley (4), M. Orio (9, N.P.M. Kuin (7), P.A. Evans (1), S.N. Shore (11, S. Starrfield (3), Technology, T.J. O'Brien (8), U. Munari (2), University College London, University of Manchester","cross_cats":[],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T13:54:57Z","title":"The 2021 outburst of the recurrent nova RS Ophiuchi observed in X-rays by the Neil Gehrels Swift Observatory: a comparative study"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2205.03232","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:e1643641815e6ad92dfe5d935b755f011b88445ca73192a24c785138fb7f7a4a","target":"record","created_at":"2026-07-05T04:33:36Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"2595c404d89fb6c535f8243703a8ecf36465d14fa32c7a3849829f9dc5191768","cross_cats_sorted":[],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"astro-ph.HE","submitted_at":"2022-05-06T13:54:57Z","title_canon_sha256":"b0b0a21fa23983ed98e4c7140ca9643cf70c3565e98d0b863bccefec740a7f6a"},"schema_version":"1.0","source":{"id":"2205.03232","kind":"arxiv","version":1}},"canonical_sha256":"26bc6064b3c025bda1312a8177641ce2bc99622691390ab3062d6d7c306d96d6","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"26bc6064b3c025bda1312a8177641ce2bc99622691390ab3062d6d7c306d96d6","first_computed_at":"2026-07-05T04:33:36.370622Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T04:33:36.370622Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"7GXHtUGPbtX52CG2XfRVlZSMBSd8CrQ1pwqu9zDCX1oPG/pV0mVjxmjckzpL65J1ZY+TrjCP/fHViwg3z87SBQ==","signature_status":"signed_v1","signed_at":"2026-07-05T04:33:36.371118Z","signed_message":"canonical_sha256_bytes"},"source_id":"2205.03232","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:e1643641815e6ad92dfe5d935b755f011b88445ca73192a24c785138fb7f7a4a","sha256:e9590d51384b1cbca8d35eb63ce42ee4a8fafc4d0dbe3a052d5abfe611a8c8da"],"state_sha256":"f01c98b909d3cecacba8f0341ffc5a1d0349732c0308513a5f9df972d34b3b44"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"HbTehDIU//bIxFqbuw4A88wDlAO+G0F/xvblFgOG0oKkopXaIv8333JSK4MkaNC0aSlafxanWG6Fch6Q4Af8Aw==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-07T08:19:58.996444Z","bundle_sha256":"ad2e72d2ac851f2116356aeb13e0b5b7461e1f6aaec2171567a59c42ee452e31"}}